将值从余烬组件发送到父模板

Question

I want to pass lat and lng from an ember component to another ember component ( g-map ). My handlebars template:

  {{!-- Index.hbs --}}
  <div class="jumbotron-outside">
  <div class="jumbotron">
    <h1 class="display-3">See The Weather Outside :)</h1>
    <p class="lead">This is a simple forecast weather.</p>
    <hr class="my-4">
    <p>Just type everything bellow this input text to get all list of the city</p>
    {{text-autocomplete}}
    <p class="lead">
      <button class="btn btn-primary btn-default" href="#" role="button" disabled={{isDisabled}}>Search</button>
    </p>
  </div>
  {{g-map lat=lat lng=lng zoom=zoom}}
</div>

and this is for my text-autocomplete component:

// text-autocomplete/component.js
import Ember from 'ember';

let lat;
let lng;
export default Ember.Component.extend({
    didInsertElement() { //dom can be acessed here :)
        var autocomplete = new google.maps.places.Autocomplete($('input')[0]);
        var parent = this.$('input');
        google.maps.event.addListener(autocomplete, 'place_changed', function() {
            var place = autocomplete.getPlace();
            lat = place.geometry.location.lat();
            lng = place.geometry.location.lng();
        });
    }
});

I want to pass the lat and lng values from text-autocomplete component to the g-map component to draw a marker in the google map.

Can anyone solve this? :(

Answer 1

Create index.js controller file and introduce lat , lng and zoom properties. you can pass this properties to components text-autocomplete and g-map . text-autocomplete this component should send actions to controller for updating new values for lat and lng because of two way binding it will automatically update in other places too.

index.js controller file,

import Ember from 'ember';
export default Ember.Controller.extend({
    lat:'',
    lng:'',
    zoom:'',
    actions:{
        updateLatAndLng(lat,lng){
            this.set('lat',lat);
            this.set('lng',lng);
        }
    }
});

index.hbs

{{text-autocomplete lat=lat lng=lng updateLatAndLng=(action 'updateLatAndLng')}}
{{g-map lat=lat lng=lng zoom=zoom}}

text-autocomplete.js file

import Ember from 'ember';
export default Ember.Component.extend({
    didInsertElement() { //dom can be acessed here :)
        var autocomplete = new google.maps.places.Autocomplete($('input')[0]);
        var parent = this.$('input');
        let _this = this;
        google.maps.event.addListener(autocomplete, 'place_changed', function() {
            var place = autocomplete.getPlace();
            lat = place.geometry.location.lat();
            lng = place.geometry.location.lng();
            _this.sendAction('updateLatAndLng',lat,lng); //here we are sendin actions to controller to update lat and lng properties so that it will reflect in all the other places.
        });
    }
});